# GymNext Flex Timer vs ONE8 Denver

The clearest difference is in-app purchases: ONE8 Denver at none against GymNext Flex Timer's 2. ONE8 Denver also leads on rating (5.0 vs 4.8) and iOS requirement (13.0 vs 15.0). GymNext Flex Timer's advantage is ads (none vs shown) and ratings volume (2.1K vs 1). On price and device support there is nothing between them.

Both are free to download. GymNext Flex Timer sells 2 in-app purchases, starting at $8.99 per month. ONE8 Denver asks for nothing beyond the download.

ONE8 Denver holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: GymNext Flex Timer has 2.1K ratings behind it against 1, so its average is the more settled of the two.

GymNext Flex Timer ships an update every 3 weeks, ONE8 Denver every 6 weeks. The most recent releases landed on October 13, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | GymNext Flex Timer | ONE8 Denver |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (2.1K ratings)](https://appshunter.io/ios/app/gymnext-flex-timer/id977329344/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/one8-denver/id6473308990/reviews)** |
| Number of ratings | **2.1K** | 1 |
| Positive reviews | 71.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | **Free** | Ad-supported |
| Size | 185 MB | 71 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Homick Enterprises](https://appshunter.io/developer/346326303) | [PushPress, Inc.](https://appshunter.io/developer/688595778) |

## What reviewers say

### GymNext Flex Timer

[App page](https://appshunter.io/ios/app/gymnext-flex-timer/id977329344)

This app offers advanced interval training timing with customizable modes and the ability to control an external LED display. It integrates with wearables and heart rate monitors for a comprehensive workout experience.

**Highlights:** Control external LED displays, Multiple customizable timer modes (Tabata, EMOM, etc.), Save and recall favorite workouts, Apple Watch control, Audio sync with music, Heart rate monitor integration, Control multiple LED displays

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flex Timer Pro Monthly | $8.99 | per month |
| Flex Timer Pro Yearly | $79.99 | per year |

**What reviewers like**

- 🚀 Versatile and customizable
- 👍 User-friendly interface
- 🔔 Reliable and consistent
- 💪 Excellent for interval training
- 🔊 Clear audio cues

**What reviewers complain about**

- 🐛 Audio cues sometimes stop working
- 🔊 Lack of volume control
- 🔍 Detailed instructions needed for beginners
- ⏱️ Delayed countdown between phone and timer

**Reported bugs**

- Saved timers not consistently loading
- Segmented timers not saving properly

**Requested features**

- Watch app integration for remote control
- Background audio playback when app is closed
- Customizable voice options
- Lap timer functionality


### ONE8 Denver

[App page](https://appshunter.io/ios/app/one8-denver/id6473308990)

This app connects members to a wellness collective offering services across eight pillars of health. Manage your membership, book appointments, log workouts, and connect with others in a communal space designed for growth and thriving.

**Highlights:** Membership management, Appointment booking, Workout logging, Member interaction, After-hours access, Access to diverse wellness services

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is GymNext Flex Timer free?

GymNext Flex Timer is free to download, with in-app purchases available.

### Is ONE8 Denver free?

ONE8 Denver is free to download, with no in-app purchases.

### Which has better reviews, GymNext Flex Timer or ONE8 Denver?

ONE8 Denver is rated higher. GymNext Flex Timer averages 4.8 out of 5 from 2.1K ratings, while ONE8 Denver averages 5.0 from 1 ratings.

### Do GymNext Flex Timer or ONE8 Denver have ads?

ONE8 Denver shows ads; GymNext Flex Timer does not.

### Which is updated more often, GymNext Flex Timer or ONE8 Denver?

GymNext Flex Timer ships an update every 3 weeks, and ONE8 Denver every 6 weeks. Most recently, GymNext Flex Timer was updated on October 13, 2026 and ONE8 Denver on October 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*